go-chart/continuous_range_test.go
2020-11-22 16:45:10 -08:00

22 lines
517 B
Go

package chart
import (
"testing"
"github.com/wcharczuk/go-chart/v2/testutil"
)
func TestRangeTranslate(t *testing.T) {
// replaced new assertions helper
values := []float64{1.0, 2.0, 2.5, 2.7, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0}
r := ContinuousRange{Domain: 1000}
r.Min, r.Max = MinMax(values...)
// delta = ~7.0
// value = ~5.0
// domain = ~1000
// 5/8 * 1000 ~=
testutil.AssertEqual(t, 0, r.Translate(1.0))
testutil.AssertEqual(t, 1000, r.Translate(8.0))
testutil.AssertEqual(t, 572, r.Translate(5.0))
}